package cn.com.wxd.wechat.common.util.http;

import java.io.File;
import java.io.IOException;

import org.apache.http.HttpEntity;
import org.apache.http.HttpHost;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.ContentType;

import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.entity.mime.MultipartEntityBuilder;

import cn.com.wxd.wechat.common.bean.result.WxError;
import cn.com.wxd.wechat.common.bean.result.WxMediaUploadResult;
import cn.com.wxd.wechat.common.exception.WxErrorException;

/**
 * 上传媒体文件请求执行器，请求的参数是File, 返回的结果是String
 * @author
 */
public class MediaUploadRequestExecutor implements RequestExecutor<WxMediaUploadResult, File> {

	public WxMediaUploadResult execute(CloseableHttpClient httpclient, HttpHost httpProxy, String uri, File file) throws WxErrorException, ClientProtocolException, IOException {
		HttpPost httpPost = new HttpPost(uri);
		if (httpProxy != null) {
			RequestConfig config = RequestConfig.custom().setProxy(httpProxy).build();
			httpPost.setConfig(config);
		}
		if (file != null) {
			HttpEntity entity = MultipartEntityBuilder.create().addBinaryBody("media", file).build();
			httpPost.setEntity(entity);
			httpPost.setHeader("Content-Type", ContentType.MULTIPART_FORM_DATA.toString());
		}
		CloseableHttpResponse response = httpclient.execute(httpPost);
		String responseContent = Utf8ResponseHandler.INSTANCE.handleResponse(response);
		WxError error = WxError.fromJson(responseContent);
		if (error.getErrorCode() != 0) {
			throw new WxErrorException(error);
		}
		return WxMediaUploadResult.fromJson(responseContent);
	}

}
